476978251 has 4 divisors (see below), whose sum is σ = 477040600. Its totient is φ = 476915904.

The previous prime is 476978233. The next prime is 476978267. The reversal of 476978251 is 152879674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 476978251 - 2⁷ = 476978123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 476978195 and 476978204.

It is not an unprimeable number, because it can be changed into a prime (476973251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17781 + ... + 35638.

It is an arithmetic number, because the mean of its divisors is an integer number (119260150).

Almost surely, 2^476978251 is an apocalyptic number.

476978251 is a deficient number, since it is larger than the sum of its proper divisors (62349).

476978251 is an equidigital number, since it uses as much as digits as its factorization.

476978251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62348.

The product of its digits is 846720, while the sum is 49.

The square root of 476978251 is about 21839.8317530149. The cubic root of 476978251 is about 781.3270478807.

The spelling of 476978251 in words is "four hundred seventy-six million, nine hundred seventy-eight thousand, two hundred fifty-one".